git.sur5r.net Git - openldap/blob - servers/slapd/main.c

   1 #include "portable.h"
   2
   3 #include <stdio.h>
   4
   5 #include <ac/socket.h>
   6 #include <ac/string.h>
   7 #include <ac/time.h>
   8
   9 #include "slap.h"
  10 #include "ldapconfig.h"
  11 #include "lutil.h"                      /* Get lutil_detach() */
  12
  13 extern void     slapd_daemon();
  14 extern int      lber_debug;
  15
  16 extern char Versionstr[];
  17
  18
  19 /*
  20  * read-only global variables or variables only written by the listener
  21  * thread (after they are initialized) - no need to protect them with a mutex.
  22  */
  23 int             ldap_debug = 0;
  24 #ifdef LDAP_DEBUG
  25 int             ldap_syslog = LDAP_DEBUG_STATS;
  26 #else
  27 int             ldap_syslog;
  28 #endif
  29 int             ldap_syslog_level = LOG_DEBUG;
  30 int             udp;
  31 int             slapd_shutdown;
  32 char            *default_referral;
  33 char            *configfile;
  34 time_t          starttime;
  35 pthread_t       listener_tid;
  36 int             g_argc;
  37 char            **g_argv;
  38 /*
  39  * global variables that need mutex protection
  40  */
  41 time_t          currenttime;
  42 pthread_mutex_t currenttime_mutex;
  43 int             active_threads;
  44 pthread_mutex_t active_threads_mutex;
  45 pthread_mutex_t new_conn_mutex;
  46 long            ops_initiated;
  47 long            ops_completed;
  48 int             num_conns;
  49 pthread_mutex_t ops_mutex;
  50 long            num_entries_sent;
  51 long            num_bytes_sent;
  52 pthread_mutex_t num_sent_mutex;
  53 /*
  54  * these mutexes must be used when calling the entry2str()
  55  * routine since it returns a pointer to static data.
  56  */
  57 pthread_mutex_t entry2str_mutex;
  58 pthread_mutex_t replog_mutex;
  59
  60 static void
  61 usage( name )
  62     char        *name;
  63 {
  64         fprintf( stderr, "usage: %s [-d ?|debuglevel] [-f configfile] [-p portnumber] [-s sysloglevel]\n", name );
  65 }
  66
  67 int
  68 main( argc, argv )
  69     int         argc;
  70     char        **argv;
  71 {
  72         int             i;
  73         int             inetd = 0;
  74         int             port;
  75         char            *myname;
  76         Backend         *be = NULL;
  77         FILE            *fp = NULL;
  78         extern char     *optarg;
  79
  80         configfile = SLAPD_DEFAULT_CONFIGFILE;
  81         port = LDAP_PORT;
  82         g_argc = argc;
  83         g_argv = argv;
  84
  85         while ( (i = getopt( argc, argv, "d:f:ip:s:u" )) != EOF ) {
  86                 switch ( i ) {
  87 #ifdef LDAP_DEBUG
  88                 case 'd':       /* turn on debugging */
  89                         if ( optarg[0] == '?' ) {
  90                                 printf( "Debug levels:\n" );
  91                                 printf( "\tLDAP_DEBUG_TRACE\t%d\n",
  92                                     LDAP_DEBUG_TRACE );
  93                                 printf( "\tLDAP_DEBUG_PACKETS\t%d\n",
  94                                     LDAP_DEBUG_PACKETS );
  95                                 printf( "\tLDAP_DEBUG_ARGS\t\t%d\n",
  96                                     LDAP_DEBUG_ARGS );
  97                                 printf( "\tLDAP_DEBUG_CONNS\t%d\n",
  98                                     LDAP_DEBUG_CONNS );
  99                                 printf( "\tLDAP_DEBUG_BER\t\t%d\n",
 100                                     LDAP_DEBUG_BER );
 101                                 printf( "\tLDAP_DEBUG_FILTER\t%d\n",
 102                                     LDAP_DEBUG_FILTER );
 103                                 printf( "\tLDAP_DEBUG_CONFIG\t%d\n",
 104                                     LDAP_DEBUG_CONFIG );
 105                                 printf( "\tLDAP_DEBUG_ACL\t\t%d\n",
 106                                     LDAP_DEBUG_ACL );
 107                                 printf( "\tLDAP_DEBUG_STATS\t%d\n",
 108                                     LDAP_DEBUG_STATS );
 109                                 printf( "\tLDAP_DEBUG_STATS2\t%d\n",
 110                                     LDAP_DEBUG_STATS2 );
 111                                 printf( "\tLDAP_DEBUG_SHELL\t%d\n",
 112                                     LDAP_DEBUG_SHELL );
 113                                 printf( "\tLDAP_DEBUG_PARSE\t%d\n",
 114                                     LDAP_DEBUG_PARSE );
 115                                 printf( "\tLDAP_DEBUG_ANY\t\t%d\n",
 116                                     LDAP_DEBUG_ANY );
 117                                 exit( 0 );
 118                         } else {
 119                                 ldap_debug |= atoi( optarg );
 120                                 lber_debug = (ldap_debug & LDAP_DEBUG_BER);
 121                         }
 122                         break;
 123 #else
 124                 case 'd':       /* turn on debugging */
 125                         fprintf( stderr,
 126                             "must compile with LDAP_DEBUG for debugging\n" );
 127                         break;
 128 #endif
 129
 130                 case 'f':       /* read config file */
 131                         configfile = strdup( optarg );
 132                         break;
 133
 134                 case 'i':       /* run from inetd */
 135                         inetd = 1;
 136                         break;
 137
 138                 case 'p':       /* port on which to listen */
 139                         port = atoi( optarg );
 140                         break;
 141
 142                 case 's':       /* set syslog level */
 143                         ldap_syslog = atoi( optarg );
 144                         break;
 145
 146                 case 'u':       /* do udp */
 147                         udp = 1;
 148                         break;
 149
 150                 default:
 151                         usage( argv[0] );
 152                         exit( 1 );
 153                 }
 154         }
 155
 156         Debug( LDAP_DEBUG_TRACE, "%s", Versionstr, 0, 0 );
 157
 158         if ( (myname = strrchr( argv[0], '/' )) == NULL ) {
 159                 myname = strdup( argv[0] );
 160         } else {
 161                 myname = strdup( myname + 1 );
 162         }
 163
 164         if ( ! inetd ) {
 165                 /* pre-open config file before detach in case it is a relative path */
 166                 fp = fopen( configfile, "r" );
 167 #ifdef LDAP_DEBUG
 168                 lutil_detach( ldap_debug, 0 );
 169 #else
 170                 lutil_detach( 0, 0 );
 171 #endif
 172         }
 173 #ifdef LOG_LOCAL4
 174         openlog( myname, OPENLOG_OPTIONS, LOG_LOCAL4 );
 175 #else
 176         openlog( myname, OPENLOG_OPTIONS );
 177 #endif
 178
 179         init();
 180         read_config( configfile, &be, fp );
 181
 182         if ( ! inetd ) {
 183                 pthread_attr_t  attr;
 184                 int             status;
 185
 186                 time( &starttime );
 187                 pthread_attr_init( &attr );
 188                 pthread_attr_setdetachstate( &attr, PTHREAD_CREATE_DETACHED );
 189
 190 #if !defined(HAVE_PTHREADS_D4)
 191                 /* POSIX_THREADS or compatible
 192                  * This is a draft 10 or standard pthreads implementation
 193                  */
 194                 if ( pthread_create( &listener_tid, &attr, slapd_daemon,
 195                     (void *) port ) != 0 ) {
 196                         Debug( LDAP_DEBUG_ANY,
 197                             "listener pthread_create failed\n", 0, 0, 0 );
 198                         exit( 1 );
 199                 }
 200 #else   /* draft4 */
 201                 /*
 202                  * This is a draft 4 or earlier pthreads implementation
 203                  */
 204                 if ( pthread_create( &listener_tid, attr, slapd_daemon,
 205                     (void *) port ) != 0 ) {
 206                         Debug( LDAP_DEBUG_ANY,
 207                             "listener pthread_create failed\n", 0, 0, 0 );
 208                         exit( 1 );
 209                 }
 210 #endif  /* !draft4 */
 211                 pthread_attr_destroy( &attr );
 212                 pthread_join( listener_tid, (void *) &status );
 213                 pthread_exit( 0 );
 214         } else {
 215                 Connection              c;
 216                 Operation               *o;
 217                 BerElement              ber;
 218                 unsigned long           len, tag;
 219                 long                    msgid;
 220                 int                     flen;
 221                 struct sockaddr_in      from;
 222                 struct hostent          *hp;
 223
 224                 c.c_dn = NULL;
 225                 c.c_ops = NULL;
 226                 c.c_sb.sb_sd = 0;
 227                 c.c_sb.sb_options = 0;
 228                 c.c_sb.sb_naddr = udp ? 1 : 0;
 229                 c.c_sb.sb_ber.ber_buf = NULL;
 230                 c.c_sb.sb_ber.ber_ptr = NULL;
 231                 c.c_sb.sb_ber.ber_end = NULL;
 232                 pthread_mutex_init( &c.c_dnmutex, pthread_mutexattr_default );
 233                 pthread_mutex_init( &c.c_opsmutex, pthread_mutexattr_default );
 234                 pthread_mutex_init( &c.c_pdumutex, pthread_mutexattr_default );
 235 #ifdef notdefcldap
 236                 c.c_sb.sb_addrs = (void **) saddrlist;
 237                 c.c_sb.sb_fromaddr = &faddr;
 238                 c.c_sb.sb_useaddr = saddrlist[ 0 ] = &saddr;
 239 #endif
 240                 flen = sizeof(from);
 241                 if ( getpeername( 0, (struct sockaddr *) &from, &flen ) == 0 ) {
 242 #ifdef SLAPD_RLOOKUPS
 243                         hp = gethostbyaddr( (char *) &(from.sin_addr.s_addr),
 244                             sizeof(from.sin_addr.s_addr), AF_INET );
 245 #else
 246                         hp = NULL;
 247 #endif
 248
 249                         Debug( LDAP_DEBUG_ARGS, "connection from %s (%s)\n",
 250                             hp == NULL ? "unknown" : hp->h_name,
 251                             inet_ntoa( from.sin_addr ), 0 );
 252
 253                         c.c_addr = inet_ntoa( from.sin_addr );
 254                         c.c_domain = strdup( hp == NULL ? "" : hp->h_name );
 255                 } else {
 256                         Debug( LDAP_DEBUG_ARGS, "connection from unknown\n",
 257                             0, 0, 0 );
 258                 }
 259
 260                 ber_init_w_nullc( &ber, 0 );
 261
 262                 while ( (tag = ber_get_next( &c.c_sb, &len, &ber ))
 263                     == LDAP_TAG_MESSAGE ) {
 264                         pthread_mutex_lock( &currenttime_mutex );
 265                         time( &currenttime );
 266                         pthread_mutex_unlock( &currenttime_mutex );
 267
 268                         if ( (tag = ber_get_int( &ber, &msgid ))
 269                             != LDAP_TAG_MSGID ) {
 270                                 /* log and send error */
 271                                 Debug( LDAP_DEBUG_ANY,
 272                                     "ber_get_int returns 0x%x\n", tag, 0, 0 );
 273                                 return 1;
 274                         }
 275
 276                         if ( (tag = ber_peek_tag( &ber, &len ))
 277                             == LBER_ERROR ) {
 278                                 /* log, close and send error */
 279                                 Debug( LDAP_DEBUG_ANY,
 280                                     "ber_peek_tag returns 0x%x\n", tag, 0, 0 );
 281                                 ber_free( &ber, 1 );
 282                                 close( c.c_sb.sb_sd );
 283                                 c.c_sb.sb_sd = -1;
 284                                 return 1;
 285                         }
 286
 287                         connection_activity( &c );
 288
 289                         ber_free( &ber, 1 );
 290                 }
 291         }
 292         return 1;
 293 }